The Analysis and Experimental Investigation of Electromagnetic Characteristics on High Speed Circuit PDN With Multislots

Li, Yan; Gao, Zhiyi; Zuo, Panpan; Cao, Wenyuan; Zheng, Hongxing; Li, Er‐Ping

doi:10.2528/pierm18032103

Cited by 1 publication

(1 citation statement)

References 12 publications

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“…An extensive body of research has been dedicated to investigating ash deposition mechanisms, which are well-understood to include inertial impaction, eddy impaction, thermophoresis, condensation, and chemical reactions . Numerous review articles, each focusing on distinct research interests and published across different eras, have enriched our understanding of these processes. − For instance, Kleinhans et al comprehensively analyzed the behaviors of ash particles sticking and rebounding, shedding light on their intricacies.…”

Section: Introductionmentioning

confidence: 99%

Improved Comprehensive Mechanism for Initial Deposit Formation: The Role of Thermophoresis and Glue Effect in Solid Fuel Combustion

Wang,

Zhou,

et al. 2023

Energy Fuels

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Ash deposition during solid fuel combustion presents significant challenges for the efficiency and longevity of thermal power plants. Understanding the dynamics of this process is, therefore, of critical importance. This study delves into the complex mechanisms involved with a focus on the formation of the initial deposit layer. By highlighting the pivotal role of submicrometer particles in this process, we expand upon our one-decade long studies on this topic and explore a diverse range of fuel types, air-and oxyfiring conditions, and additive tests, with a total of 47 experimental results. First, this work suggests that the yield of submicron (PM 1 ) particles, expressed as a percentage, is a more effective predictor of initial deposit layer formation than its concentration in g/m 3 . Second, we acknowledge the influence of mainstream velocity and temperature gradients on deposition, leading us to introduce a new thermophoresis correction factor. This addresses the probability of submicrometer particles impacting the wall. Furthermore, we examine the influence of PM 1 composition, proposing a glue effect correction factor defined by an empirical value relating to chlorine contents. In conclusion, this study presents an enhanced comprehensive understanding of the initial ash deposition process during solid fuel combustion. This improvement is largely attributed to the integration of a physical model with machine learning techniques. Although the glue effect correction factor requires further investigation, this research offers significant insight into the initial deposition process. It thus charts a course for more efficient strategies to mitigate ash deposition in thermal power plants in the future.

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